Grace introduces Tri-Flex® Xtreme™ synthetic roofing underlayment. By utilizing Grace’s Traction XT Skid Resistant Technology, the surface of Tri-Flex Xtreme provides maximum slip resistance. When drying in a roof, it can be left exposed to the elements for up to six months without rotting, cracking or drying out. The tight weave of Tri-Flex Xtreme gives it intense tensile strength. Grace Tri-Flex Xtreme comes in rolls of 41.5 inches by 289 feet and covers 10 full squares. For more information, call 866-333-3726 or visit